Door-check.



J. F. NAUGLE.

DOOR CHECK.

APPLICATION FILED 313.21, 1910.

Patented 0011.4,1910.

2 SHEETSBHEET 2.

INVENTOTK 0/76 Mug;

entrain erases earner caries.

JOSEPH F. NAUGLE, OF MEYEBSDALE, PENNSYLVANIA.

DOOR-CHECK.

mania.

To all whom it may concern:

Be it known that I, JOSEPH F. NAUGLE, a citizen of the United States of America, residing at Meyersdale, in the county of Somerset and State of Pennsylvania, have invented certain new and useful Improvements in Door-Checks, of which the following is a specification, reference being had therein to the accon'ipanying drawing.

This invention relates to door checks, and the object thereof is to provide a device of such class in a manner as hereinafter set forth, whereby the closing movement of the door will be gradual to prevent the banging thereof.

A further object of the invention is to provide a door check in a manner as hereinafter set forth with means, whereby the closing movement of the door can be governed.

A further object of the invention is to provide a door check in a manner as hereinafter set forth, which can be mounted within the door frame or exteriorly of the frame when desired.

further objects of the invention are to provide a door check in the manner as hereinafter set forth and claimed and which shall be automatic and gradual in its action, strong, durable, readily set up in operative position, efficient in its use, and inexpensive to manufacture.

\Vith the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to, which come within the scope of the claims hereunto appended.

In the drawings, wherein like reference characters denote corresponding parts throughout the several views, Figure 1 is a front elevation of a door and a door frame,

showing an adaptation therewith of a door.

check in accordance with this invention, Fig. 2 is a like View showing a modified arrangement of the door check with respect to the door and door frame, Fig. 3 is an enlarged horizontal sectional view of the door frame showing the adaptation therewith of certain elements of the door check, Fig. 1 is an enlarged front elevation broken away and also partly in section, of the door and door Specification of Letters Patent.

Application filed February 21, 1910.

Patented Get. at, 1919.

Serial No. 545,054.

frame, and further showing the adaptation therewith of certain elements of the door check, Fig. 5 is a vertical sectional elevation of a dash pot forming an element of the door check, Fig. 6 is a plan of the dash pot, Fig. 7 is a section on line a2-a; of Fig. 5, Fig. 8 is an inverted plan of the adjustable plug at the lower end of the cylinder of the dash pot, Figs. 9, 10 and 11 are respectively a side elevation, an end view, and a sectional view of one of the sheaves forming an element of the door check, and Figs. 12, 13 and 14s are respectively a sectional side elevation, an end view, and a plan of an adjustable sheave used when the closure is mounted exteriorly of the door frame.

Referring to Figs. 1 and 3 to S. 1 denotes the door provided on its outer face at its upper outer corner with an arm 2, which projects, as at 3 above the top edge 4: of the door 1. The side bars of the door frame are indicated by the reference characters 5 and 5 The top bar of the frame is formed of two sections, an inner 6 and an outer section 7, the latter being secured to the former by suitable hold-fast devices. The door 1 is hinged to one of the side bars, as at 8. The side bar 5 of the door frame is also formed of two sections, the inner section being cut away to provide a recess 9, which is closed by the outer section of the bar 5. The inner section 6 of the top bar of the frame is cut away to provide a recess or channel 10, which communicates at one end with an opening 11 formed in one of the side walls of the recess 9, whereby communication is established between one end of the channel 10 and the upper end of the recess 9.

Mounted in the front section 7 of the top bar of the door frame and extending into the recess or channel 10 at one end thereof is a bracket 12 provided with a sheave 13, the latter being mounted upon a verticallydisposed axis 1 1. Arranged in the recess 9, at the upper end thereof and secured to a side wall of said recess 9, as at- 15 is av bracket 16 provided with a sheave 17 mounted upon a horizontally-disposed axis 18. The sheave 17 is disposed at right angles with respect to the sheave 13 and traveling over said sheave 17 and through the recess or channel 10 and over the sheave 13 is a flexible member 1.9, which has its outer end connected to the upper portion 3 of the arm 2, so that when the door is open, the member 19 will be pulled therewith.

F ixedly secured to one of the side walls of the recess 9 is an upper clamp and a lower clamp 21 for supporting within said recess 9 a dash-pot consisting of an elon gated cylinder 22 open at its upper end and having its inner face at its lower end interiorly threaded, as at 23 with which engages an adjustable hollow threaded plug 24, whereby the lower end of the cylinder 22 is closed. The plug 24 is provided with a series of openings 25 constituting air inlets and which are closed by a flap valve 26 secured by the hold-fast device 27 to the inner face of the bottom of the plug 24. The cylinder 22 in proximity to its lower end has its wall provided with an opening 28, which constitutes an outlet and. which can be partially closed by the inner end of the plug 24, as clearly shown in Fig. 5.

By screwing inwardly upon the plug 11, the area of the opening 28 is reduced and by shifting the plug outwardly, the area of the opening 28 is increased, as is obvious and by such an arrangement the air discharged from the cylinder can be regulated to increase or decrease the speed of the downward movement of the elongated weighted or counter-balance plunger 29, which is mounted in the cylinder 22 and connected by the eye 30 to the end 31 of the flexible member 19. The plug 24 also constitutes a means for arresting the downward move ment of the plunger 29. The upper end of the plunger 29 is provided with a packing disk 32 secured in position by the washer 33 and shank of the screw eye 30 and to the lower end of the plunger 29 is secured a packing disk 34, which is secured in position by the hold-fast device 35. disk 34 forms an air-tight connection between the plunger 29 and the inner face of the cylinder 22, while the packing disk 32 prevents the plunger from wabbling within the cylinder. \Vhen the plunger is in its lowermost position, the packing disk 34 is adapted to engage the top edge of the plug 24 and if the plug is in the position shown in Fig. 5, the inner end of the plug, packing disk 34 and the lower end of the piston will close the outlet 28.

Referring to Fig. 2 of the drawings, the door check, as illustrated is arranged exteriorly of the door frame 36. In Fig. 2, the same form of dash-pot construction is employed and which is illustrated by the reference character 37 and is secured in position by the clamps 38, 89 fixed to one of the side bars of the door frame. lVhen the dash-pot 37 is positioned exteriorly of the door frame, the forms of sheaves and brackets illustrated in Figs. 9 to 14 are employed for the flexible member 19. The sheave shown in Figs. 10 and 11 is indicated by the reference character 40 and is carried by a bracket 44 which is illustrated in Figs.

The packing I 9, 10 and 11 and which is formed with apertured extensions 42 through which is adapted to extend hold-fast devices for securing the bracket 44 to the top bar 43 of the door frame, as at 44, so that the sheave 40 will be arranged in operative relation with respect to the arm 2 at the upper outer corner of the door 1. The sheave, as shown in Figs. 12 and 13, is secured to that side bar of the door frame 36 with which is connected the dash-pot 37 and the sheave which is indicated by the reference character 45 is carried by a bracket 46 adjustably suspended through the medium of the bolts 47, nuts 48 and slots 49 from an angle-shaped arm 50, as shown in Figs. 12, 13 and 14 and which are fixedly secured to the door frame, as shown in Fig. 2. By providing this adjustable suspension for the sheave 45, it can be centered directly over the dash-pot 37.

From the foregoing construction and arrangement of parts, it is evident that when the door is pulled open and released, the plunger 29 will move downwardly in the cylinder 22 and in a gradual manner, where by the door will be gradually closed owing to the fact that the plunger 29 is connected to the door by the flexible member 19. Vhen the door is pulled open, the plunger 29 is elevated in the cylinder 22, as the flexible member 19 will be pulled outwardly when the door is opened. On the up ward movement of the plunger 29 air will be sucked into the cylinder 22 through the inlets 25 creating an air cushion in the lower end of the cylinder 22 for the plunger when the latter moves downwardly. As the plunger moves downwardly the air is gradually exhausted through the openings 28, such action preventing the rapid fall of the plunger 29. By utilizing a construction of door check in a manner as hereinbefore described and illustrated in the accompanying drawings, the door will close easy and without a bang, it will also give persons passing in and out ample time to pass through, either way, without danger of being bumped heavily, as is the case with the ordinary spring checked doors. The door can be operated with greater ease with a door check in accordance with this invention than a spring controlled door, as the same amount of pressure is required to push the door open its entire width, as is required to push it open just a few inches, whereas the farther a spring controlled door is pushed open the harder it is to operate. This is a great advantage over the spring check. In addition to this, the doors operated by a door check in accordance with this invention can be opened the full width of the door, without injury to the check.

Another improvement or advantage of a door check in accordance with this invention is, that the door can be pushed back its full width, and left stand wide open, all day long if so desired, without readjusting the check in any way, and it is not necessary to fasten or prop the door back in any way. This is a decided improvement over the ordinary spring checks, as most if not all of them are put out of commission it the door is opened, and pushed back its full Width, or in other words back against the wall.

Vhat I claim is 1. In a ,door check and closer, the combination with a door frame and a door, and means for automatically closing the door, including a flexible cord fast over sheaves, and a counterbalance plunger connected to said cord, of a vertically disposed checking cylinder secured to the door frame in line with the movement of said plunger, said cylinder having an outlet removed from its lower ends and a valved hollow screw plug seated in the lower end of the cylinder constructed to admit air upon the movement of the plunger in one direction and to close the same when the plunger moves in the opposite direction, said plug adapted to partially cover the opening in the cylinder to restrict the outflow therefrom and to form a stop to limit the downward movement of the plunger.

2. In a door check and closer, the combination with a door frame and a door, and means for automatically closing the door, including a flexible cord fast over sheaves, and a counterbalance plunger connected to said cord, of a vertically disposed checking cylinder secured to the door frame in line with the movement of said plunger, said cylinder having an outlet removed from its lower ends and a valved hollow screw plug seated in the lower end of the cylinder constructed to admit air upon the movement of the plunger in one direction and to close the same when the plunger moves in the opposite direction, said plug adapted to partially cover the opening in the cylinder to restrict the outflow therefrom and to form a stop to limit the downward movement of the plunger, a packing disk secured upon the top of said plunger, and a packing disk secured to the bottom of said plunger, each of said packing disks snugly engaging the inner face of the cylinder.

In testimony whereof I aflix my signature in the presence of two witnesses.

JOSEPH F. NAUGLE.

Witnesses W. M. COOK, ROBERT COOK. 

